To be even safer, use a hardware wallet because no matter how good a software wallet is, it does not guarantee 100% of the assets will be safe because it is still possible to connect to the internet.
Neither does a hardware wallet. Nothing is 100% safe and impenetrable. Even if it was, there is always the good old wrench to the kneecaps or a similar method until you start singing.
We just had a big problem with Tangem hardware wallets recently where it was confirmed that seeds of users who contacted customer support were exposed and leaked. So much for security.